Flat CRT panel
US6693374B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2002 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Aug 7, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/862
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Flat CRT panel including a substantially flat outside surface, and an inside surface with a certain radius of curvature, wherein the panel is formed such that (Ts/Tm)*CFT*Rz falls on a range of 28-36, where CFT denotes a center thickness, Ts denotes a diagonal effective screen edge thickness Ts, Tm denotes a maximum thickness at an interface of the skirt and the effective screen, and Rz denotes an inside radius of curvature, i.e., a value obtained by dividing a diagonal effective screen sectional radius of curvature Rd by a representative value {Rd/(1.767*a diagonal length of the effective screen)}, thereby minimizing breakage during heat treatment and reducing a production cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.